1001011211122 has 8 divisors (see below), whose sum is σ = 1617018110316. Its totient is φ = 462005174352.

The previous prime is 1001011211093. The next prime is 1001011211129. The reversal of 1001011211122 is 2211121101001.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 735445171561 + 265566039561 = 857581^2 + 515331^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is not an unprimeable number, because it can be changed into a prime (1001011211129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19250215573 + ... + 19250215624.

Almost surely, 2^{1001011211122} is an apocalyptic number.

1001011211122 is a deficient number, since it is larger than the sum of its proper divisors (616006899194).

1001011211122 is a wasteful number, since it uses less digits than its factorization.

1001011211122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38500431212.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 1001011211122 its reverse (2211121101001), we get a palindrome (3212132312123).

The spelling of 1001011211122 in words is "one trillion, one billion, eleven million, two hundred eleven thousand, one hundred twenty-two".